Hello here,

I am trying to perform a reference transaction via SOAP-PHP, and currently I use the following XML schema which I am not sure it is correct:

<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope
xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance"
xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/1999/XMLSchema"
SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<SOAP-ENV:Header>
<RequesterCredentials
xmlns="urn:ebay:api:PayPalAPI"
SOAP-ENV:mustUnderstand="1">
<Credentials xmlns="urn:ebay:apis:eBLBaseComponents">
<Username>[username]</Username>
<Password>[password]</Password>
<Subject/>
</Credentials>
</RequesterCredentials>
</SOAP-ENV:Header>
<SOAP-ENV:Body>
<DoReferenceTransactionReq xmlns="urn:ebay:api:PayPalAPI">
<DoReferenceTransactionRequest xsi:type="ns:DoReferenceTransactionRequestType">
<Version xmlns="urn:ebay:apis:eBLBaseComponents" xsi:type="xsd:string">1.0</Version>
<ReferenceID xsi:type="xsd:string">0JE83805449092000</ReferenceID>
<PaymentAction xsi:type="xsd:string">Sale</PaymentAction>
<PaymentDetails xsi:type="ebl:PaymentDetailsType">
<OrderTotal currencyID="USD" xsl:type="cc:BasicAmountType">0.02</OrderTotal>
</PaymentDetails>
</DoReferenceTransactionRequest>
</DoReferenceTransactionReq>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>


I am asking this because if I send out that message to the PayPal API server, I get the following error response:

<?xml version="1.0" encoding="UTF-8"?>
<soap-env:envelope xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soap-enc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance" xmlns:xsd="http://www.w3.org/1999/XMLSchema" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:cc="urn:ebay:apis:CoreComponentTypes" xmlns:wsu="http://schemas.xmlsoap.org/ws/2002/07/utility" xmlns:saml="urn:oasis:names:tc:SAML:1.0:assertion" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:wsse="http://schemas.xmlsoap.org/ws/2002/12/secext" xmlns:ed="urn:ebay:apis:EnhancedDataTypes" xmlns:ebl="urn:ebay:apis:eBLBaseComponents" xmlns:ns="urn:ebay:api:PayPalAPI">
<soap-env:header>
<security xmlns="http://schemas.xmlsoap.org/ws/2002/12/secext" xsi:type="wsse:SecurityType"></security>
<requestercredentials xmlns="urn:ebay:api:PayPalAPI" xsi:type="ebl:CustomSecurityHeaderType">
<credentials xmlns="urn:ebay:apis:eBLBaseComponents" xsi:type="ebl:UserIdPasswordType">
<username xsi:type="xs:string">
</username><password xsi:type="xs:string">
</password><signature xsi:type="xs:string">
</signature><subject xsi:type="xs:string">
</subject>
</credentials>
</requestercredentials>
</soap-env:header>
<soap-env:body id="_0">
<doreferencetransactionresponse xmlns="urn:ebay:api:PayPalAPI">
<timestamp xmlns="urn:ebay:apis:eBLBaseComponents">2012-01-25T21:33:48Z</timestamp>
<ack xmlns="urn:ebay:apis:eBLBaseComponents">Failure</ack>
<correlationid xmlns="urn:ebay:apis:eBLBaseComponents">fb701ea5a0f6c</correlationid>
<errors xmlns="urn:ebay:apis:eBLBaseComponents" xsi:type="ebl:ErrorType">
<shortmessage xsi:type="xs:string">Missing Parameter</shortmessage>
<longmessage xsi:type="xs:string">ReferenceID : Mandatory parameter missing</longmessage>
<errorcode xsi:type="xs:token">81253</errorcode>
<severitycode xmlns="urn:ebay:apis:eBLBaseComponents">Error</severitycode>
</errors><version xmlns="urn:ebay:apis:eBLBaseComponents">1.0</version>
<build xmlns="urn:ebay:apis:eBLBaseComponents">2488002</build>
<doreferencetransactionresponsedetails xmlns="urn:ebay:apis:eBLBaseComponents" xsi:type="ebl:DoReferenceTransactionResponseDetailsType">
</doreferencetransactionresponsedetails>
</doreferencetransactionresponse>
</soap-env:body>
</soap-env:envelope>

Anyone can tell me what's wrong with my request above? How should I reformat it?

Thank you in advance for any help!

Sincerely,
Fab.